Steam-trap.



H. ENzL G. WINSCHENKBR..

STEAM TRAP.

APPLICATION FILED JUNE 25, 1909.

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jnuenrow HENRY ENZ ANDv GUSTAVE WEINSCIIENKER, OFV ALLSWORTH,PENNSYLVANIA.

STEAM-TRAP.

Specification of Letters Patent.

Patented Sept. '7, 1909.

Application filed June 25, 41909. Serial No. 504,319.

To all whom 'it may concern: v

Be it known that we, HENRY ENZ. and GUSTAVE VEINSCHENKER, citizens ofthe United States of America, residing at Allsworth, in the county ofVestmoreland and State of Pennsylvania, have invented certain new anduseful Improvements in Steam-Traps, of which the following is aspecification, reference being had therein to lo the accompanyingdrawing.

This invention relates to steam traps, and the invention has for itsobject to provide simple and effective means for removing water fromsteam lines, cylinders and structures where water accumulates bycondensation of steam, the condensate retarding the function of thesteam, and' in many instances impairing the structure m which the wateraccumulates.

matic steam trap wherein an expansible tube is employed in connectionwith a valve and steam pressure for ejecting condensate from the' trap.

Vith the above and other objects in View which will more readily appearas the invention is better understood, the same consists in a novelconstruction, combination and arrangement of parts to `be hereinafterdescribed in detail and claimed.

Reference will now be had to the drawing forming a part of thisspeciiication, wherein there is illustrated a convenient embodiment ofour invention, and in which Figure 1 is an elevation of the steam trappartly broken away and partly in section, and, Fig. 2 is a horizontalsectional View of the steam trap. v

Referring to the ddrawings in detail, 1 denotes an annular cylindricalmember provided with a bore 3 adapted to communicate with a boiler (notshown), the bore 3 extends from end to end of the member 1 and hasopening therein a right-angularly disposed port 4. Formed integral withand projecting at right angles to the member 1 is a nipple 2 havingexterior threads 9, the said nipple 2 communicating with the bore 3through the' medium of the port 4. The

outer end of the member 1 is provided with a nipple 1a which opens intothe bore 3 and also communicates with a blow-olf valve mechanism 19.

Mounted in the nipple 2 and communicating with the port 4 is avertically extending expansible tube 5 carrying on its upper end ashiftable cap 6 formed in its top with an opening 7, the wall of saidopening 7 being beveled to constitute a valve seat 8. Connected to thethreads of the nipple 9 is an 60 elongated vertically extending tubularcasing 10 which incloses the pipe .5 and has yits upper end formed withinterior threads to which is secured the depending extension 11at of avalve casing 11, the latter being mounted directly upon the top edge ofthe casing 10. The extension 11'p1 has its inner diameter such as toprovide a passage through which extends the cap 6 and the diameter ofsuchpassage is such as to allow of the shifting of the cap 6 whenoccasion so requires. The depending extension 11a of the Avalve casing11 is formed with a plurality of circumferentially arranged verticallydisposed ports 16 for establishing communication be- 75 tween theinterior of the casing 10 below the extension 11a andthe interior of thevalve casing 11. The top wall of the valve casing 11 is provided with acentrally dispose opening 12 having the wall thereof screw# 80 threadedand connected to the threads of the wall of said opening 12 is a plug 13having a centrally disposed passagethrough which extends a valve stem 14carrying on its lower end a beveled valve 15 adapted to engage 85 whenoccasion so requires, the seat 8. The plug 13 has a portion of the wallof the passage thereof threaded (not shown), the stem 14 is alsothreaded, such arrangement provides for the adjustability of the stem14. As this is such a well known construction, it

is thought unnecessary to illustrate it.

Secured to and communicating with the interior of the casing 10 at apoint in proximity to the top edge of the nipple 2 is an 95 outlet pipe17 which has attached thereto a globe valve 18.

The operation of the device is as follows: The steam passing through themember 1 and into the tube 5 will cause the said tube to expand andfurther shift the cap 6 upwardly so that the seat 8 will be engaged withthe valve 15 whereby the Opening at the upper end of the tube 5 will beclosed so as to shut olf communication between the valve casing 11 andthe interior of the casing 10 through the ports 16. Should the steamcondense and a quantity of water accumulate in the tube 5, a contractionof the tube immediately takes place, pressure being relieved upon thecap 6, the latter moves downT wardly so that the seat'8will be shiftedlfrom,

the Valve (1,5 the Steam .is then .immediately blown into the valvecasing 11 and from there passes through the ports 16 into the'- casing10, and the steam accumulates if the casing'hl() in `the valve 18 isclosed, if the latter is open, the steam is discharged through the pipe17. The operation of the steam f might accumulate in the bore 3 can beblown of by the valve 19.

The tube may be made of any suitable material which is 'capable ofexpansion and contraction, while the other elements of the trap can beconstructed of strong and durable metal, which is not readilysusceptible to the action of heat and cold.

H avings now described our invention, what we claim as new is :4-

1. A steam trap comprisingamember having a bore adapted to communicatewith the boiler, an elongated tubular casing supported by said member,an expansible and contracti- `ble tube communicating with said bore andarranged within said casing, a valve casing mounted upon said tubularcasing and provided with a depending extension'projecting into saidtubular casing, a shiftable cap mounted upon said tube andinterposedbetweengthe 'extension'and the tube and provided with a valve seat, saidextension provided with ports for establishing communication between thevalve casing and the tubular casing, and a valve supported by the valvecasing and adapted to be engaged by said seat for shut-ting offcommunication beltwei'en the valve-casing and the tubularv casing,and anoutlet for the tubular casing.

2. A steam trap @Gulprising expansible and contractible tube adapted tocommunicasing and the tubular casing. Y

3. A steam trap comprising an eXpansible and contractible tube adaptedto communicate withA a steam boiler, means forsupporting the lower endof'said tube, a tubular casing surrounding said tube and provided withVan outlet, a valve casing provided with means to constitute a pluralityof ports for establishing communication between the valvecasing and thetubular casing, a shift- Y able'cap mounted upon the tube and-providedwith a valve seat, and a valve carried the valve by the casing andadapted to be engaged by Y said seat whereby communication is shut offbetween the tube and the valve casing and between the valve casing andthe tubularV casing. Y Y l In testimony whereofwe affix our signaturesin the presence of two witnesses. Y HENRY ENZ; y

GUSTAVE WENSCHENKER. litnesses:

EDWARD C. TAYLOR, T. FOSTER Coon. l

